El dragón barbudo (Pogona vitticeps) es una especie de reptil de la familia de los agámidos originario de las regiones desérticas y semidesérticas de Australia. Es diurno, omnívoro y terrestre semiarborícola. Actualmente es comercializado como mascota en diversos lugares del mundo.
Es un lagarto de paso firme con garras no retráctiles. Sus párpados pueden cerrarse y abrirse. Su gran cabeza triangular diapside está rodeada por una hilera de escamas espinosas bajo el cuello, que le sirve para intimidar a posibles rivales o a depredadores. Cuando se siente amenazado, el dragón barbudo abre ampliamente la boca, desplegando al mismo tiempo su barba de espinas, la cual se colorea de negro,con el fin de impresionar sus adversarios Una serie de escamas espinosas está también presente a ambos lados del cuerpo. A lo largo de su espalda tienen dos hileras de manchas.
Las "fases" de coloración son muy diversas.
Los machos adultos, que llegan a medir hasta 60 cm de largo y a pesar 450 g, son más grandes que las hembras; poseen varios poros femorales bien diferenciados situados dentro de los muslos. Los abultamientos del hemipene a ambos lados de la cola, son visibles en los machos.
Hay dragones barbudos de una gran variedad de colores, incluyendo castaño, pardo, gris, verde, rojizo, y anaranjado. cada individuo es capaz de experimentar cambios muy leves de su color para ayudar a regular su temperatura y expresar su estado de ánimo.
--------------
Pogona vitticeps, the Central (or Inland) Bearded Dragon, is a species of agamid lizard occurring in a wide range of arid to semi-arid regions of Australia. This species is very popularly kept as a pet and exhibited in zoos.
Adults of this species usually grow to be about 2 feet in length, with the tail accounting for over half of the total body length. Females are typically smaller than the males, have smaller heads, thinner legs and tails and wider bodies. Bearded dragons come in a wide variety of colors, including brown, grey, reddish-brown, red, yellow, white, orange, and sometimes green. They are capable of undergoing very slight changes in the shade of their color to help regulate temperature. The specialized scales along both sides of the throat, neck, and head form many narrow spines which run down the side of the body to the tail. When feeling threatened a Bearded dragon will flatten its body against the ground, puff out its spiny throat, and open its jaws to make itself appear larger. The Bearded dragon is so named because of the pouch-like projection (also called the guttural pouch) on the underside of the neck and chin area which typically turns darker than the rest of the body. It also boasts spiny projections. Both these characteristics appear similar to a human beard. Males typically have a darker "beard" than females, and during mating season and courtship the "beard" will typically darken to near-black. The Bearded dragon, like most agamid lizards, has strong legs which enable it to lift its body completely off the ground while it moves. This is done to reduce the heat taken in from the ground, as well as to increase the air-flow over the belly to cool itself further.
Pogona vitticeps was first described by Ernst Ahl in 1926, placing it in the genus Amphibolurus.
-------------------------------------------------------------------------------------------
Mas informacion textual en wikipedia
Mas informacion grafica en masfotografias.com
Loading...
0:32
Chlamydosaurus kingii o lagarto de collarby areaturistica1,261 views
Les tienen muy poca luz,no?? Por eso están tan estáticas, este animal es muy activo...
mon1488 1 day ago
Parecen estátuias. Sorprendente.
ReoninaEsp 9 months ago